I have three registered heraldic badges: a rose per pale argent and azure, a hawk's bell argent, and (my "ancient arms") Argent, a lion rampant contourny sable, in chief two roses azure each charged with a rose argent. My livery colors are royal blue and silver.
One of our scribes pointed out that persons should list their favorite flowers and bugs and fruit and vegetables to make things easier for the scribes. Therefore:Roses (especially heraldic in blue and white), carnations, lilac, lavender, anything on the cooler side of the spectrum (blue, purple, white, bluish reds, but not yellows and oranges usually). Bees and dragonflies and butterflies. Apples, pears, any sort of berry or melon. Broccoli, spinach, winter squash, carrots, parsnips, peas, green beans, and asparagus.